v2.0

Added several options per Yichen Zhong's suggestions in the SESUG 2016 paper (see ReadMe).

1.0.3

Supersede offset formula for cases of only 2 or 3 groups.
Note: may add offset as a macro parameter in a future release.

1.0.2

Bug fix for legend entry length restriction

1.0.1

Bug fix for y var length restriction

1.0

Initial release